Comparison

Seconds Interval Timer vs Gustav Workout Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Seconds Interval Timer

This app provides a versatile interval timer for various workout types like Tabata, HIIT, and circuit training. It features a clear, full-screen display, customizable alerts, and background operation. Users can also utilize a stopwatch and countdown timer, with integration for Apple Health.

Highlights
  • Full-screen colored display
  • Templates for HIIT, Tabata, Circuit Training
  • Voice and audio alerts
  • Music assignment per interval
  • Background operation
  • Apple Health integration
  • Stopwatch and countdown timer
Features
Read full description

Seconds is an interval timer for HIIT, Tabata, EMOM, circuits and any workout built from timed intervals. It calls each interval out loud, keeps running with the screen off, and runs on iPhone, iPad and Apple Watch. Apple has featured it, and Joe Wicks, The Body Coach, has said it is the fitness app he uses more than any other. BUILD ANY WORKOUT - Start from a HIIT, Tabata or circuit template, or build a timer from scratch with sets, rounds and intervals of different lengths. - Chain timers into one compound timer, so a warm-up flows into the main set and then a cool-down. - Color-code every interval so you know what is coming before the beep. - Share a timer with a friend in one tap. HEAR IT, DON'T WATCH IT - Voice cues call out each interval by name and warn you before the next one starts. - Beeps and bells are there too if you would rather not be talked at. - Play your own music, per timer or per interval. Cues duck the music and it comes back up when they are done. - The timer keeps going in the background while you use other apps or the screen sleeps. ON THE GYM FLOOR - A full-screen, color-coded display you can read from across the room, in portrait or landscape. On iPad it uses the whole screen. - A lock button stops a stray tap from pausing your set. APPLE WATCH - Seconds runs on the watch by itself, so the phone can stay in the locker. Timers you build on the phone sync to the wrist, and Quick Intervals builds a basic circuit on the watch itself. MORE TIMERS - A stopwatch that marks your best and worst laps. - A countdown timer with five preset durations (three on Apple Watch). APPLE HEALTH - Save workouts and mindful sessions to Health. With a heart rate monitor connected, Seconds reads your body measurements and year of birth from Health to estimate calories burned. FREE TO TRY, ONE PAYMENT TO UNLOCK - Everything is available from the first launch. Build any timer and run it. - Each timer locks after you run it once. A single in-app purchase removes the lock on every timer you make. SECONDS AND SECONDS PRO - Seconds Pro is the same app, paid once up front, with nothing to unlock. The two are separate products and a purchase in one does not carry over to the other. If you bought Seconds Pro, download Seconds Pro. If you bought the unlock in Seconds, download Seconds and use Restore Purchases.

About

Gustav Workout Timer

This app helps you manage your workout intervals for various training types like HIIT, circuits, and strength. It offers customizable timers, built-in options, and personalized interval naming for a focused and comfortable training experience.

Highlights
  • Customizable intervals up to 10 minutes
  • Ready-made built-in timers
  • Save custom timers to Favourites
  • Custom interval naming
  • New sound and audio cue options
  • Haptic feedback for interval changes
  • Modern Liquid Glass design
Features
Read full description

Gustav Workout Timer – your interval timer for HIIT, Tabata, CrossFit, circuit training, and all workout types. Fast, clean, and more convenient than ever. Perfect for HIIT workouts, cardio training, strength training, yoga, and circuit training – all your interval exercise needs. What you'll find in the app: - Customizable intervals: set up to 10 intervals with durations up to 10 minutes, including countdown before your first interval starts. - Built-in timers: pre-made workout timers ready to use instantly without setup. - Favorites: save your custom timers and easily share them with your team. - Personal naming: name each interval according to your workout. - New sounds + audio alerts: choose what signals the end of each interval. - Haptic feedback: gentle haptic response so you stay informed without looking at the screen. - Liquid Glass design: modern, clean aesthetic with new transitions and depth. - New animations: smoother and more engaging workout experience. - Various backgrounds: choose from preset backgrounds or use your own. - Improved user experience: more intuitive keyboard handling, better portrait mode display, and additional optimizations. Whether you're pushing hard through short intervals or going at a steady pace, this app helps you keep the rhythm and focus on your technique.

Screenshots

Seconds Interval Timer4 screens
Gustav Workout Timer4 screens

Verdict

The call

The clearest difference is rating: Seconds Interval Timer at 4.7 against Gustav Workout Timer's 4.1. Seconds Interval Timer also leads on ratings volume (24K vs 8). Gustav Workout Timer's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 75%). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase. Gustav Workout Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Seconds Interval Timer holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 75% of Seconds Interval Timer's written reviews are positive against 100% of Gustav Workout Timer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

Scorecard5 real differences · 5 level
Seconds Interval Timer versus Gustav Workout Timer: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerGustav Workout Timer
PriceFreeFree
Rating4.7 (24K ratings) — better4.1 (8 ratings)
Positive reviews74.9% of reviews100.0% of reviews — better
Number of ratings24K — better8
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size95 MB31 MB
Age rating4+4+
DeveloperRunloop LtdDalibor Janecek

Customer experience

Seconds Interval Timer

All ratings23,673 ratings
Positive93.0%
Neutral1.9%
Negative5.2%
Written reviews1,245 reviews
Positive74.9%
Neutral6.2%
Negative18.9%

Gustav Workout Timer

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Seconds Interval Timer

Reported bugs

2 issues
  • Timer sometimes stops working unexpectedly
  • Issues with restoring purchases on new devices

Requested features

5 requests
  • Ability to change beep/alert volume independently
  • Option to delay transition between intervals
  • Sync workouts across devices
  • More preset workout templates
  • Heart rate monitoring integration

Gustav Workout Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Seconds Interval Timer

One-time1
  • Advanced Version$7.99
None

Gustav Workout Timer

No in-app purchases

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is Gustav Workout Timer free?
Gustav Workout Timer is free to download, with no in-app purchases.
Which has better reviews, Seconds Interval Timer or Gustav Workout Timer?
Seconds Interval Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Gustav Workout Timer averages 4.1 from 8 ratings.
Do Seconds Interval Timer or Gustav Workout Timer have ads?
Neither Seconds Interval Timer nor Gustav Workout Timer shows ads.
Which is updated more often, Seconds Interval Timer or Gustav Workout Timer?
Seconds Interval Timer ships an update monthly, and Gustav Workout Timer monthly. Most recently, Seconds Interval Timer was updated on October 3, 2026 and Gustav Workout Timer on October 1, 2026.

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